Synthesis and metal ion binding properties of thiaaza crown macrocycles

Two new macrocyclic ligands ( 3) and ( 4), containing nitrogen–sulfur donor atoms, were designed and synthesized in a multi-step reaction sequence. The macrocycles ( 3) and ( 4) were used in solvent extraction of metal picrates such as Ag +, Hg 2+, Cd 2+, Zn 2+, Cu 2+, Ni 2+, Mn 2+, Co 2+, and Pb 2+...

Full description

Saved in:
Bibliographic Details
Published in:Journal of hazardous materials 2008-11, Vol.159 (2), p.519-522
Main Authors: Alp, Hakan, Gök, Halil Zeki, Kantekin, Halit, Ocak, Ümmühan
Format: Article
Language:English
Subjects:
Applied sciences
Aza Compounds - chemistry
Chemical engineering
Crown Compounds - chemistry
Crown ether
Exact sciences and technology
Extraction constant
Ligands
Liquid-liquid extraction
Macrocycle
Magnetic Resonance Spectroscopy
Mass Spectrometry
Metals - chemistry
Pollution
Solvent extraction
Solvents
Spectrophotometry, Infrared
Spectroscopy, Fourier Transform Infrared
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Two new macrocyclic ligands ( 3) and ( 4), containing nitrogen–sulfur donor atoms, were designed and synthesized in a multi-step reaction sequence. The macrocycles ( 3) and ( 4) were used in solvent extraction of metal picrates such as Ag +, Hg 2+, Cd 2+, Zn 2+, Cu 2+, Ni 2+, Mn 2+, Co 2+, and Pb 2+ from aqueous phase to the organic phase. The metal picrate extractions were investigated at 25 ± 0.1 °C by using UV–visible spectrometry. The extractability and selectivity of the mentioned metal picrates were evaluated according to the organic solvents. The values of the extraction constants (log K ex) and the complex compositions were determined for the extracted complexes.
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2008.02.093